大约有 44,000 项符合查询结果(耗时:0.0287秒) [XML]

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NullPointerException accessing views in onCreate()

... The tutorial is probably outdated, attempting to create an activity-based UI instead of the fragment-based UI preferred by wizard-generated code. The view is in the fragment layout (fragment_main.xml) and not in the activity layout (activity_main.xml). onCreate() i...
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How do I get a YouTube video thumbnail from the YouTube API?

...They are predictably formatted as follows: https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg https://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg https://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg https://img.youtube.com/vi/<insert-youtube-...
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SQL select only rows with max value on a column [duplicate]

...ticed you need the content column as well. This is a very common question in SQL: find the whole data for the row with some max value in a column per some group identifier. I heard that a lot during my career. Actually, it was one the questions I answered in my current job's technical interview. ...
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What is the standard naming convention for html/css ids and classes?

Does it depend on the platform you are using, or is there a common convention that most developers suggest/follow? 8 Answer...
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Would it be beneficial to begin using instancetype instead of id?

Clang adds a keyword instancetype that, as far as I can see, replaces id as a return type in -alloc and init . 4 An...
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Get Specific Columns Using “With()” Function in Laravel Eloquent

... Well I found the solution. It can be done one by passing a closure function in with() as second index of array like Post::with(array('user'=>function($query){ $query->select('id','username'); }))->get(); It will only select id and username from other t...
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Left Join With Where Clause

I need to retrieve all default settings from the settings table but also grab the character setting if exists for x character. ...
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Django filter queryset __in for *every* item in list

Let's say I have the following models 6 Answers 6 ...
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Single controller with multiple GET methods in ASP.NET Web API

In Web API I had a class of similar structure: 17 Answers 17 ...
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Distributed sequence number generation?

I've generally implemented sequence number generation using database sequences in the past. 13 Answers ...